The World’s Longest Performance
A 639-year performance that is based on avant-garde composer John Cage’s “As Slow as Possible” began in September 2001 and is still being played at St. Burchardi Church in Halberstadt, Germany.
Source: slate.com
The performance is played by an automated organ and progresses so slowly that visitors need to wait months just to hear a chord change. The song is scheduled to conclude in the year 2640. Will there be an encore?